Oil heater



s; J. NORTH ET AL OIL HEATER esmas-shawl Filed June 27.' 1923 vvvvO OOoo 00000 OO OAOA OOO() Afm d. 7 u mwa /Ww NMLM E 7 O V/H/ T. WM T 6.65C 2 Y B l e Miami 1s 1924. www@ s. J. NORTH ET AL OIL HEATER Filed June27, 1923 2 Sheets-Shea?, Z

l ATTORNEY.

Patented Mar. 18 1924i. l

nutren SETE J. NORTH AND BRYCE W. MCCLYMONT, F DETROT,

MICHIGAN.

OIL HEATER.

Application led .Tune 2'5",

This invention relates to oil heaters and the object of the invention isto provide a heater which will produce several times the heat of theordinary type of oil heater. Another object of the invention is toprovide a means for preventing the heat from being communicated to theoil tank. A fur-- ther object of the invention is to provide a pressurevfeed oil heater in which the pressure in the tank is at all timesindicated on a pressure gage provided therefor. Another object of theinvention is to provide an oilV burner and tank which may be inserted inan oil heater to replace the usual wick type of burner and tank andwhich has several times the heating capacity of the wick type heater.

Another object of the invention'is to provide a means for accuratelyadjusting the quan tity of oil flow from the tank to the burner. Theseobjects and the several novel features of the invention are hereinafter'more fully described and claimed and the preferred form of constructionby which these objects are attained is shown in the `accompanyingdrawings in which- Fig 1 is an elevation of an oil heater embodying ourinvention.

Fig. 2 Fig. 1.

Fig. 2.

Fig. 4 is a section taken on line 4 4 of Fig. 2.

As shown in Fig. 1 the heater comprises a base 1 having legs 2 formedintegrally there-` with. rlhe base 1 is provided with a cylindricalortion 3 having a notch 4 formed in one siding thereof. As shown inFigs. 2 and 3 a series of three brackets 5 are spot welded f orotherwise secured in place on the interior of the cylindrical portion 3and an oil tank 6 is provided having a horizontal flange 7 which isadapted to resten the upper ends the same to open or 192e. serial no.@Mesa of the brackets 5 and support the tank 6 in position. A plug 8 isthreaded into the upper end of the tank 6 as shown in Fig. 1 and may beremoved for filling the tank with oil. A nut 9 is supported in the sideof the tank 6 having a central aperture into which a tube 10 extends,the said tube terminating near the upper end of the tank above the levelof the filler plug 8 as shown in Fig. 2. A member 11 is threaded intothe nut 9 on the exterior of the tank and secures the end of the tube 10in place in the nut as shown. This member 11 is provided with anaperture 12 therethrough which is in communication with an aperture 13leading to the pressure gage 14 shown in Figs. 1, 2 and 4. The memn ber11 is also provided with 15 on. one side thereof as shown in Fig. 4

and is provided with an aperture 16 therethrough which is normallyclosed olf from the apertures 12 and 13 by the needle valve 17. Thisneedle valve 17 is provided with a threaded portion 18 threaded into theend of the member 11 and is provided with a handle 19 for threading thesame into or out of the member 11. A nut 20 is also supported in theside of the tank 6 having a central aper ture to receive the end of atube 21 which terminates adjacent the bottom of the tank 6. A member 22is threaded into the nut 20 and secures the tube 21 in place and isprovided with an aperture 23 therethrough in communication with the tube21 and with an aperture 24 at right angles 'to the aperture 23 incommunication with a tube 25. A needle valve 26 is threaded into themember 22 and is provided with a bent end 27 for turning close thepassage provided by the apertures 23 and 24 and thus accurately regulatethe oil flow to the burner. 1s a section taken on line 2-2 ofV the tank6 and anasbestos washer 29 is po- Fig. 3 is a section taken on line 3-3Vof.

A threaded stud 28 extends from the top of sitioned over the stud 28 andan apertured sheet metal disc 30 is positioned on top of the asbestoswasher 29 and over the stud 28. A metal priming cup 31 is threaded ontothe a threaded boss upper end of the stud 28 and bindingly secures thedisc 30 and washer 29 in position on top of the tank. rlihe priming cup3l is provided with a central recess over the stud 28 adapted to receivethe stem 32 of an cil Aburner 33 to which the tube 25 is connected asshown in Fig. 2. This burner is of the pressure type in which the oil ispreheated i and atomized in order to produce a gas which is ignited inthe channel 34 of the burner.

' SUT@ The heater is provided as shownin Figs. 1 and 2 with acylindrical sheet metal heating drum 35 having a downwardly flaredflange 36 which is hinged to the base portion 3 at 37 shown in Fig. 1.The portion 3 opposite the hinge 37 is provided with' a metal catch 38which extends through an aperture provided in the flange 36 and securesthe upper portion of the heater to the base and the cylindrical portion35 is provided with a handle 39 pivotally secured thereto by which theheater may be carried.

In operation the tank 6 is filled with oil by removing the ller plug 3and when the filler plug is replaced a pump is connected to the threadedend 15 of the member 11. By rotating the handle 19 atthis time theneedle valve 17 is withdrawn so that the aperture 16 is in communicationwith the apertures 12 and 13 ofthe member 11. By operation of the pump'a pressure is placed on the oil through the aperture 12 and tube 10 andthis pressure is indicated by the pressure gage 11i. When the correctpreshas been reached the needle valve 17 is again seated as shown inFig. 4 which closes ofi1V the aperture 16 and the pump may bedisconnected at this time if desired without loss of pressure. When theneedle valve is' seated as shown the pressure is communicated to thegage through the tube 10 and apertures 12 and 13 so that the pressure inthe tank is indicated at all times by the pressure gage. At this time bydepressing the catch 38 shown in Fig. 1 the portion 35 may be turnedback' on the hinge 37 and the priming cup 31 is filled with gasoline oralcohol which is ignited to preheat the burner. The needle valve 26 isthen opened to allow flow of oil by pressure through the tube 21,channels 23 and 24: and tube 25 into thev chamber 40 of the burner,shown in Fig. 2, from which it is sprayed through the nozzle 4:1. andaperture L.l2 into the chamber 43- and passes outwardly through theapertured flange 44 as a gas and is ignited in the channel 34 of theburner. 'When the heater is in the closed position shown in Fig. 2 thecylindrical portion 35 fits over the burner and disc 30 which acts as ashield and encloses the burnerV in the upper part ofV the heater andprevents the heat from traveling downward about the tank 6 and theasbestos washerv 29 prevents the heat of the shield and priming cup frombeing directly communicated to the tank. If desired the edge of the disc3() may be bent downwardly as shown in dotted lines in Fig. 1 to allow agreater air current to' pass upwardly to the burner and at' the sametime provide a shield for the tank. By adjusting the handle 27 theneedle valve 26 may be adjusted to vary the `liow of oil to the burnerto give greater or less heat as desired. Due to the construction thetank and burner may be easily'lifted out of the heater casing to allowthe tank to be filled and as most oil heaters are provided with a slot11 shown in Fig. 1 by removing the wick type burner and tank thepressure type burner and tank may be inserted in the same place. Byproviding the space e7 between the periphery of the shield 30 and theedge of the heating drum 35 and the space 45 between the flange 7 of theoil tank and the cylindrical base 3 air may pass upwardly from beneaththe heater about the oil tank and upon striking the inwardly flaredflange 36 the air is thrown inwardly over the top of the oil tank tocool it and passes upwardly through the space li7 about the shield 30into the heating drum 35 where it is heated and passes out through theapertures 46 in the top of the heating drum.A With this construction theoil tank is cooled and the shield 30 prevents the heat from travellingdownwardly to the tank.

From the foregoing description it becomes evident that the device isvery simple and efficient in operation, will not easily get out oforder, is composed of few parts and is of consequent low manufacturingcost and provides a device which accomplishes the objects described.

Having thus fully described our invention, its utility and mode ofoperation, what we claim and desire to secure by Letters Patent of theUnited States is 1. An oil heater comprising a hollow base, an oil tankremovably supported in the base and provided with a sealed top, an oilburner secured above the tank in spaced relation therewith, a shieldsecured beneath the burner in spaced relation with the top of the tank,an oil conduit connected lto the burner and opening into the bottom ofthe tank allowing- How of oil un-der pressure to the burner, means forregulating the flow of oil through the oil conduit, means for indicatingthe pressure metal drum secured to the base and fitting about the shieldin spaced relation with the periphery thereof.

2. An oil heater comprising a hollow base, an oil tank removablysupported in the base, a burner secured above the tank in spacedrelation therewith, a sheet metal shield secured beneath the burner inspaced relation with the tank, an oil conduit connected to the burnerand opening into the bottom of the tank, the tank being adapted for theapplication of pressure to the surface of the oil, and a sheet metaldrum hinged to the base and fitting about the shield in spaced relationwith the periphery thereof when in the closed position, the drum andshield forming an enclosure for the burner.

3. An oil heater comprising a hollow base, an oilv tank removablysupported in the base, a sheet Ine-tal shield secured to the tank inspaced relation with the upper surface therein the' tank, and a sheetof,an oil burner mounted on the top of the shield, an oil conduit openingfrom the bottom of the tank and connected to the burner, means fordelivering compressed air into the tank above the oil, and a sheet metaldrum hinged to the base and enclosing the burner and shield.

4. An oil heater comprising Ia hollow base, an oil tank removablysupported in the base, a circular shield secured to the top of the tankand spaced from the upper surface thereof, an asbestos packing betweenthe top of the tank and the shield, an oil burner mounted above theshield and connected to the tank toallow flow of oil under pressure tothe burner, and a cylindrical heating drum forming a cover for the oilburner and fitting about the shield.

5. An oil heater comprising a hollow base, an oil tank mounted in thebase, an oil burner mounted on top of the oil tank, a shield between theoil burner and tank, a heat resistant washer spacing the shield from thetank, and a sheet metal cylindrical drum fitting Iabout the shield atthe bottom and forming a cover for the burner.

6. An oil heater comprising a hollow base, an oil tank mounted therein,an oil burner mounted on top of the oil tank, a circular shield betweenthe oil burner and tank, and ya cylindrical sheet metal heating drumhinged to the base and forming a cover for the burner, the saidcylindrical drum being in spaced rela-tion with the periphery of theshield when in the closed position.

7. An oil heater comprising a hollow base, an oil tank removablysupported in the base, an oil burner mounted on the top of the oil tank,a sheet metal heating drum hinged to the base and forming a cover forthe burner,

and a shield secured between the oil burner and tank and extending intothe heating drum when in the closed position.

In testimony whereof we sign this specioation.

SETH J. NORTH. B'RYCE W. MCCLYMONT.

